which pairs are solutions to the equation?
3xy + 9 = 33
a.
(8, 1) and (2, 6)
b.
(1, 11) and (2, 6)
c.
(1, 8) and (8, 1)
d.
(1, 8) and (1, 11)

3xy+9=33

A. 3*8*1+9=33; 3*2*6+9=45

(A. is not your answer)

B. 3*1*11+9=42; 3*2*6+9=45

(B. is not your answer)

C. 3*1*8+9=33; 3*8*1+9=33

(c. is your answer)

D. 3*1*8+9=33; 3*1*11+9=42

Your final answer, If that is confusing, is C. (1,8) and (8,1)

b.-4 units

all you   do is count how many times you move

80° is the measure of gh

step-by-step explanation:

circle f is congruent to circle j

we have two circle with center f and j.

both circles are congruent. the radius of the circle would be equal.

see the attachment for the circle.

we are given ∠efd ≅ ∠gjh

therefore, arc (ed) = arc (gh)     (∴ circle f is congruent to circle j)

but ∠dfe=80°=arc (ed)

therefore, arc (gh) = 80°

thus, 80° is the measure of gh